CVE-2019-4046: IBM WebSphere Application Server

High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days.

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory. IBM X-Force ID: 156242.

Affected products

• IBM WebSphere Application Server: before 19.0.0.4 (fixed in 19.0.0.4); from 7.0.0.0, up to and including 7.0.0.45; from 8.0.0.0, up to and including 8.0.0.15; from 8.5.0.0, up to and including 8.5.5.15; from 9.0.0.0, up to and including 9.0.0.10

Published 2019-03-25. Last modified 2026-06-17.